Describe Hex Shank Diamond Brazed Drill Bits – For Dry Drilling and Grinding Our premium diamond brazed drill bits are designed for drilling and light grinding on hard surfaces such as glass filled tiles, porcelain tiles, marble and more. Ideal for demanding jobs, these drill bits are high quality diamond brazed, providing durability and sharpness for long-term use. Main features: HIGH PERFORMANCE DIAMOND BRAZING: Designed with advanced diamond brazing technology, these drill bits provide efficient, precise cutting and grinding capabilities on marble, ceramic and glass-filled tiles. Dry Drilling and Grinding Technology: These drill bits come with a cooling wax core that allows for dry drilling and grinding without water as the cooling wax helps prevent overheating. HEX Shank Design: The universal hex shank fits securely with most standard drill bits for enhanced stability and control when drilling or grinding. Multiple Uses for Drilling and Grinding: These diamond drill bits are specifically designed to drill clean, smooth holes and can also be lightly ground as needed to finish edges and smooth surfaces. Why choose our diamond brazed drill bits? These drill bits are ideal for professional contractors and DIY enthusiasts who need a versatile drilling and grinding tool. The self-cooling wax core eliminates the need for water, making work easier and faster, while the diamond coating provides superior wear resistance for extended service life. application: Ideal for dry drilling and light grinding on materials such as fiberglass tiles, ceramics, porcelain and marble. Ideal for home improvement projects, professional renovations and maintenance tasks. Upgrade your tool kit with our diamond brazed drill bits - designed to tackle tough drilling and grinding jobs with ease, precision and durability! Package includes: 4pcs*Tile hole opener